#include<iostream>
using namespace std;
int main(){
    int a;
    cin>>a;
    if(a>0){
       if(a % 100 == 0 && a % 400 == 0 ){
            cout<<"Leap year"
       }
    
    else if(a % 100 == 0 && a % 400 != 0 ){
        cout<<"Leap year";
    }
    else{
        cout<<"Not a leap year";
    }
    }
    else{
        cout<<"Invalid input";
    }
}